#include<iostream>
#include<vector>
#include<queue>
#include<cstring>
#include<cmath>
#include<map>
#include<set>
#include<cstdio>
#include<algorithm>
#define debug(a) cout<<#a<<"="<<a<<endl;
using namespace std;
const int maxn=2e5+1000;
typedef long long LL;
inline LL read(){LL x=0,f=1;char ch=getchar();	while (!isdigit(ch)){if (ch=='-') f=-1;ch=getchar();}while (isdigit(ch)){x=x*10+ch-48;ch=getchar();}
return x*f;}
int main(void){
   cin.tie(0);std::ios::sync_with_stdio(false);
   LL w,m;cin>>w>>m;
   bool flag=1;
   while(m){
      if((m-1)%w==0) m--;
      else if((m+1)%w==0) m++;
      else if(m%w!=0){
        flag=0;
        cout<<"NO"<<"\n";
        break;
      }
      m/=w;
   }
   if(flag){
      cout<<"YES"<<"\n";
   }
   return 0;
}
